Long-time asymptotics of the zero level set for the heat equation
Long-time asymptotics of the zero level set for the heat equation
复制标题
热方程零水平集的长时间渐近
DOI:
10.1090/s0033-569x-2012-01262-4
复制
发表时间:
2012
影响因子:
0.8
通讯作者:
Jaywan Chung
中科院分区:
文献类型:
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作者:
Jaywan Chung
The zero level set Z(t) := {x ∈ Rd : u(x, t) = 0} of a solution u to the heat equation in Rd is considered. Under certain conditions on moments of the initial data, we will prove the set Z(t) in a ball of radius C √ t for some C > 0 converges to a specific graph as t → ∞ when the set is divided by √t. Solving a linear combination of the Hermite polynomials gives the graph and coefficients of the linear combination depend on moments of the initial data. Also the graphs to which the zero level set Z(t) converges are classified in some cases.
DOI:
10.1201/9780203998069
发表时间:
2004-05
期刊:
--
影响因子:
--
作者:
V. Galaktionov
通讯作者:
V. Galaktionov